使用方法
- Select a VAT rate preset (5%, 8%, 10%, 15%, 20%, 23%, or 0%) or click "Custom" to enter any rate。
- Enter the pre-tax price in the price field。
- Read the calculated VAT amount and the total price including VAT — both update instantly。
範例
- Entering a pre-tax price of 200 at 20% shows VAT amount 40.00 and total 240.00。
- Switching to a custom rate of 7.5% on a price of 80 gives VAT 6.00 and a post-tax total of 86.00。